28335调用正弦函数的问题

你好！

我之前已经按照processors.wiki.ti.com/.../C28x_Code_Generation_Tips_and_Tricks中所说添加了rts2800_fpu32.lib，并且使能了fpu32。所用CCS的版本为6，应该也是没问题的。

下面是debug文件夹下的截取的部分.map文件，应该可以说明，已经调用了rts2800_fpu32.lib了吧？

.text 0 00009000 00000a32
00009000 00000323 DSP2833x_DefaultIsr.obj (.text:retain)
00009323 00000280 ADC_SOC_INT.obj (.text:retain)
000095a3 000000f8 DSP2833x_SysCtrl.obj (.text)
0000969b 000000a1 DSP2833x_EPwm.obj (.text)
0000973c 0000009b ADC_SOC_INT.obj (.text)
000097d7 00000088 rts2800_fpu32.lib : fs_div.obj (.text)
0000985f 0000007b DSP2833x_CpuTimers.obj (.text)
000098da 00000058 rts2800_fpu32.lib : sin.obj (.text)
00009932 00000046                              : boot.obj (.text)
00009978 0000002a DSP2833x_Adc.obj (.text)
000099a2 00000028 DSP2833x_PieCtrl.obj (.text)
000099ca 00000022 DSP2833x_PieVect.obj (.text)
000099ec 00000019 rts2800_fpu32.lib : args_main.obj (.text)
00009a05 00000019 : exit.obj (.text)
00009a1e 00000009 : _lock.obj (.text)
00009a27 00000008 DSP2833x_CodeStartBranch.obj (.text)
00009a2f 00000003 DSP2833x_DBGIER.obj (.text)

另外，我不清楚出现问题是否与cmd有关，所以下面附上cmd文件。敬请斧正！谢谢！

MEMORY
{
PAGE 0 :
/* BEGIN is used for the "boot to SARAM" bootloader mode */
/* BOOT_RSVD is used by the boot ROM for stack. */
/* This section is only reserved to keep the BOOT ROM from */
/* corrupting this area during the debug process */

BEGIN : origin = 0x000000, length = 0x000002 /* Boot to M0 will go here */
BOOT_RSVD : origin = 0x000002, length = 0x00004E /* Part of M0, BOOT rom will use this for stack */
RAMM0 : origin = 0x000050, length = 0x0003B0

RAML0 : origin = 0x008000, length = 0x001000
RAML1 : origin = 0x009000, length = 0x001000
RAML2 : origin = 0x00A000, length = 0x001000
RAML3 : origin = 0x00B000, length = 0x001000
ZONE6A : origin = 0x100000, length = 0x00FC00 /* XINTF zone 6 - program space */
CSM_RSVD : origin = 0x33FF80, length = 0x000076 /* Part of FLASHA. Program with all 0x0000 when CSM is in use. */
CSM_PWL : origin = 0x33FFF8, length = 0x000008 /* Part of FLASHA. CSM password locations in FLASHA */
ADC_CAL : origin = 0x380080, length = 0x000009
RESET : origin = 0x3FFFC0, length = 0x000002
IQTABLES : origin = 0x3FE000, length = 0x000b50
IQTABLES2 : origin = 0x3FEB50, length = 0x00008c
FPUTABLES : origin = 0x3FEBDC, length = 0x0006A0
BOOTROM : origin = 0x3FF27C, length = 0x000D44

PAGE 1 :
RAMM1 : origin = 0x000400, length = 0x000400 /* on-chip RAM block M1 */
RAML4 : origin = 0x00C000, length = 0x001000
RAML5 : origin = 0x00D000, length = 0x001000
RAML6 : origin = 0x00E000, length = 0x001000
RAML7 : origin = 0x00F000, length = 0x001000
ZONE6B : origin = 0x10FC00, length = 0x000400 /* XINTF zone 6 - data space */
}


SECTIONS
{
/* Setup for "boot to SARAM" mode:
The codestart section (found in DSP28_CodeStartBranch.asm)
re-directs execution to the start of user code. */
codestart : > BEGIN, PAGE = 0
ramfuncs : > RAML0, PAGE = 0
.text : > RAML1, PAGE = 0
.cinit : > RAML0, PAGE = 0
.pinit : > RAML0, PAGE = 0
.switch : > RAML0, PAGE = 0

.stack : > RAMM1, PAGE = 1
.ebss : > RAML4, PAGE = 1
.econst : > RAML5, PAGE = 1
.esysmem : > RAMM1, PAGE = 1

IQmath : > RAML1, PAGE = 0
IQmathTables : > IQTABLES, PAGE = 0, TYPE = NOLOAD
IQmathTables2 : > IQTABLES2, PAGE = 0, TYPE = NOLOAD
FPUmathTables : > FPUTABLES, PAGE = 0, TYPE = NOLOAD

DMARAML4 : > RAML4, PAGE = 1
DMARAML5 : > RAML5, PAGE = 1
DMARAML6 : > RAML6, PAGE = 1
DMARAML7 : > RAML7, PAGE = 1

ZONE6DATA : > ZONE6B, PAGE = 1

.reset : > RESET, PAGE = 0, TYPE = DSECT /* not used */
csm_rsvd : > CSM_RSVD PAGE = 0, TYPE = DSECT /* not used for SARAM examples */
csmpasswds : > CSM_PWL PAGE = 0, TYPE = DSECT /* not used for SARAM examples */

/* Allocate ADC_cal function (pre-programmed by factory into TI reserved memory) */
.adc_cal : load = ADC_CAL, PAGE = 0, TYPE = NOLOAD

}

你好！若已经配置好rst2800_fpu32.lib。还需要包含头文件“math.h”吗？

我找了个板子试了一下，可以正常计算结果的